When you use this sound it would be nice if you spent a voluntarily donation to freesound. YOU ALWAYS HAVE TO CREDIT/ATTRIBUTE me (klankbeeld) and freesound.org in your work if you use this sound. Please do it like this if possible: http://freesound.org/people/klankbeeld/Thank you.This sound may NOT be used in (royalty free) stock material. Don't put my raw sounds/files on youtube or anywhere else. You can use them in creative way as a part of art-form, but not "re-distribute" as (royalty free) stock material. Thank you.